[SOLVED] I've got myself into a little mess! Logged out, phpmyadmin not helping

I am really sorry to ask guys, but I am completely lost here.

I made the usual stupid mistake of not entering the siteurl and home url addresses correctly. Followed your previous advice and used myphpadmin to edit them correctly. I saved those changes. I went to a different browser tab and tried to log in, but it didn't recognise my admin password. So I thought I'd be clever and go back to myphp and correct the admin password in the wp_users file. I did this, saved it.

Now WP doesn't recognise my password, and when I ask it to reset this and send me the link, nothing is arriving through the email.

Can you do anything with loose hair, 'coz I'm tearing mine out! I realise that this is all my stupidity but I could really do with some help!

The installation is at:
http://www.gbw247.info/roadarglos/

Any thoughts would be really appreciated!
Thanks
Graham.